Mold.



PATENTED JAN. 80, 1906.

W. H. BENSON.

MOLD.

APPLICATION FILED 00110. 1904.

n'nrrnln srA rEs PATENT orrron.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed Oetober 10,1904. Serial No. 227,946.

T0 on whom it may concern:

Beit known that I, WILLIAM HY BENSON, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements in Molds;and I do declare the following to be a full, clear, and eXactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in molds for manufacturing Frenchrubber heels and it consists in the construction, combination, andarrangement of devices hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a plan view of a moldembodying my improvements, showing the bottom plate detached therefrom.Fig. 2 is a longitudinal sectional view of the same, taken on the planeindicated on the line a a of Fig. 1. Fig. 3 is a transverse sectionalview of the same. Fig. 4 is a detail sectional view, on a larger scale,showing one of the mold-cavities; and Fig. 5 is a detail perspectiveview of a rubber heel formed by my improved mold.

My improved mold comprises detachable sections, o'l which three are hereshown, the outer sections being indicated at 1 and the intermediatesection being indicated at 2. The mold-cavities 3 of the French heelsare formed in the opposing sides of the said detachable sections,one-half of each mold-cavity being in one of the detachable sections, sothat the mold-cavities are complete when any two of the sections aresecured together. The sections may be of any suitable size, and they maybe provided with any suitable number of mold-cavities in their opposingsides. The said sections are made of metal, but may be made of anysuitable material. They are detachably secured together by means ofbolts 4, and the under side of the mold corresponding to the upper sideof the heel is provided with dowel-pins 5, which are here shown asprojecting from the intermediate sections 2. The sections 1 2 areprovided with registering dowel-pins 6 and openings 7 to receive them.The said dowel-pins and openings cause the mold-cavities of therespective sections to exactly register when the sections are securedtogether by the bolts.

In connection with the detachable moldsections I employ a bottom plate8.The same is provided with. openings 9 to receive the dowel-pins 5 and isprovided on its upper side with former plates or pieces 10 of therequired size and shape to fit in the lower sides of the mold-cavities,corresponding to the tops of the heels molded in said cavities and alsoof the required shape to form the required cavities in the upper sidesof the mold ed heels.

In the operation of my invention the mold is heated under a steam-pressto the required temperature and the mold-cavities filled with pieces ofrubber. The mold is then subjected to the action of the steam-pressuntil the rubber in the mold-cavities has assumed the required shape andis sufficiently firm. The molded heels are then removed.

I do not desire to limit myself to the use of my improved mold inmolding heels of rubber, as other suitable material may be used formolding the heels in accordance with my invention.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-- i Amold for molding heels, comprising a plurality of detachable sectionshaving moldcavities and also having coengaging dowelpins and openings intheir opposing sides, said sections being further provided withregistering transverse bolt-openings, bolts in said openings securingsaid sections together, a bottom plate to cover one side of the mold,said bottom plate and said sections having coengaging dowel-pins andopenings to se-- cure them together, and former-plates on the upper sideof the bottom plate and of the required size and shape to fit in thelower sides of the mold-cavities.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

WILLIAM HY BENSON. Witnesses:

FRANK ALLENDORTH, Gnonen PATTISON.

